Why this matters
Tax season over email means "can you resend the W-9," documents in fourteen threads, and your SSN unencrypted in two inboxes. One shared portal or folder saves hours in March and closes a real security hole, tax documents are identity-theft gold.
What "done" looks like
- One agreed location for all documents, bookmarked by both sides
- A folder structure by year and type
- Accountant access to your books granted properly, not via shared passwords
- A working rule: nothing sensitive travels by plain email
How to do it
- Use the firm's portal if they have one. Tools like Intuit Link and TaxDome are built for this: document request lists, reminders, e-signatures.
- Otherwise create a shared cloud folder (Google Drive, Dropbox) with subfolders per year and type.
- Grant accountant access inside your software. QuickBooks Online has a dedicated accountant-user invite that doesn't count against your user limit, never share your own login.
- Agree the workflow: requests posted, uploads against them, confirmations, no attachments.
- File documents as they arrive all year, so January isn't archaeology.
Common mistakes
- Emailing returns and IDs as plain attachments, unencrypted and unfindable later
- Sharing your master login instead of role-based accountant access
- Building a portal, then still honoring "just email it this once" requests
Real-world examples
- Intuit Link is a free client portal included with Intuit's professional tax software, preparers post request lists and clients upload against them.
- TaxDome bundles a portal, organizers, e-signatures, and secure messaging, and is widely used by small firms.
- IRS guidance for tax professionals (Publication 4557) pushes encrypted channels for taxpayer data over standard email.
From a founder's point of view
Document logistics is a system problem, not a discipline problem. The founder who "just emails things over" isn't lazier than the one with a portal, they're one folder decision behind, and they pay for it every quarter.
Rule of thumb
One location, organized by year, used all year. If tax season starts with a search of your inbox, this step isn't done.
